android_reference commons color table http://stackoverflow.com/questions/3769762/android-color-xml-resource-file http://www.color-hex.com Toggle button in the radio group make a toggle button in radio group http://stackoverflow.com/questions/2379527/android-how-to-get-a-radiogroup-with-togglebuttons change button background using drawable selector not color selector http://stackoverflow.com/questions/3506319/android-linearlayout-with-color-resource-what-am-i-doing-wrong Insert the youtube player fragment into a fragment insert the youtube player fragment into the fragment http://stackoverflow.com/questions/19848142/how-to-load-youtubeplayer-using-youtubeplayerfragment-inside-another-fragment replace the fragment in a viewpager https://github.com/danilao/fragments-viewpager-example